The correct analogy is that of "A big greedy dog stealing away a bone from a smaller dog."
An ionic bond is a bond formed formed between a metallic atom and a non-metallic atom.
The metallic atom is electropositive while the non-metallic atom is electronegative. Therefore, the metallic atom donates or gives up its electrons to the non-metallic atom which accepts the electrons.
During the formation of chemical bonds, only valence or outermost shell electrons are involved.
Metallic atoms have few valence electrons (between 1 to 3 electrons) while non-metallic atoms have many valence electrons (between 5 to 7 electrons).
Therefore the analogy by the student of a big greedy dog stealing away a bone from a smaller dog is correct because the non-metallic atoms takes the few electrons of the metallic atom and add to the many electrons they already have during the formation of an ionic bond.
Learn more about an ionic bond at: brainly.com/question/1225796